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YouTube now has speech to text functionality.... and it works!
YouTube Has Speech-to-Text Functionality.....and it Works YouTube has introduced rich metadata into select videos, which will significantly impact how online video is discovered and consumed. 
YouTube applies a technology in which automated spiders "listen" and transcribe the words in the audio track of a video.  This transcription, in the form of metadata, is embedded into the video.   
Hopefully this will lead to the transcription and searchability of narrated real estate videos in popular search engines, such as Google.
NOTE:  This technology is currently being shown on Google Labs.  it's just a matter of time before it trickles down to everyone.  So it's even MORE important to have videos rich in 'audio text/keywords'. Eventually, you will be able to search on this narrative!

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